Electrolux Dryer Error Code E21

E21 indicates a condensation water filling pump alarm. The control board has detected that the pump responsible for moving collected moisture is disconnected, not functioning, or that the TRIAC controlling the pump on the main power board has failed. The code is specific to condenser dryer models with an internal water pump system.

A power reset may temporarily clear the E21 code, but it will return if the underlying fault has not been resolved. If the pump wiring is disconnected or the pump motor has failed, the code will reappear as soon as the dryer attempts to activate the pump. Always address the root cause before relying on a reset.

Repair costs depend on which component has failed. A replacement condensation pump typically falls in the range of $30 to $80 for the part alone. Main power board replacement is more expensive, generally ranging from $100 to $250 or more for the part depending on the model. Adding professional labor costs will increase the total, usually by $80 to $150 depending on your location.

Some causes of E21 are DIY-friendly. Checking and reseating the pump wiring connector, inspecting the harness for damage, and clearing a jammed pump impeller can all be done without specialized tools. However, replacing a failed pump motor or diagnosing and replacing a faulty TRIAC on the main board is more involved and may be better suited to a qualified technician.

Running the dryer while E21 is active is not recommended. The condensation pump is responsible for removing collected water, and if it is not operating, water can accumulate and potentially overflow inside the machine. The dryer may also cycle incorrectly or shut down mid-cycle without the pump functioning properly.